2-206443945-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The ENST00000264377.8(ADAM23):​c.79C>T​(p.Arg27Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000532 in 1,259,582 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000086 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

ADAM23
ENST00000264377.8 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.389
Variant links:
Genes affected
ADAM23 (HGNC:202): (ADAM metallopeptidase domain 23) This gene encodes a member of the ADAM (a disintegrin and metalloprotease domain) family. Members of this family are membrane-anchored proteins structurally related to snake venom disintegrins and have been implicated in a variety of biological processes involving cell-cell and cell-matrix interactions, including fertilization, muscle development, and neurogenesis. It is reported that inactivation of this gene is associated with tumorigenesis in human cancers. [provided by RefSeq, May 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.079090685).
BS2
High AC in GnomAd4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ADAM23NM_003812.4 linkuse as main transcriptc.79C>T p.Arg27Cys missense_variant 1/26 ENST00000264377.8 NP_003803.1
ADAM23NM_001410985.1 linkuse as main transcriptc.79C>T p.Arg27Cys missense_variant 1/26 NP_001397914.1
ADAM23XM_005246932.4 linkuse as main transcriptc.79C>T p.Arg27Cys missense_variant 1/25 XP_005246989.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ADAM23ENST00000264377.8 linkuse as main transcriptc.79C>T p.Arg27Cys missense_variant 1/261 NM_003812.4 ENSP00000264377 P4O75077-1
ADAM23ENST00000374415.7 linkuse as main transcriptc.79C>T p.Arg27Cys missense_variant 1/265 ENSP00000363536 A1

Frequencies

GnomAD3 genomes
AF:
0.0000860
AC:
13
AN:
151138
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000315
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000487
AC:
54
AN:
1108444
Hom.:
0
Cov.:
30
AF XY:
0.0000468
AC XY:
25
AN XY:
533912
show subpopulations
Gnomad4 AFR exome
AF:
0.000177
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000532
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000860
AC:
13
AN:
151138
Hom.:
0
Cov.:
31
AF XY:
0.0000949
AC XY:
7
AN XY:
73786
show subpopulations
Gnomad4 AFR
AF:
0.000315
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000604

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 08, 2024The c.79C>T (p.R27C) alteration is located in exon 1 (coding exon 1) of the ADAM23 gene. This alteration results from a C to T substitution at nucleotide position 79, causing the arginine (R) at amino acid position 27 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.72
CADD
Benign
16
DANN
Benign
0.97
DEOGEN2
Benign
0.090
T;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.066
N
LIST_S2
Benign
0.60
T;T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.079
T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
0.34
N;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-0.62
N;N
REVEL
Benign
0.040
Sift
Benign
0.093
T;T
Sift4G
Pathogenic
0.0010
D;D
Polyphen
0.0
B;.
Vest4
0.17
MutPred
0.20
Loss of methylation at R27 (P = 0.0208);Loss of methylation at R27 (P = 0.0208);
MVP
0.043
MPC
1.9
ClinPred
0.057
T
GERP RS
-7.3
Varity_R
0.062
gMVP
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs927616810; hg19: chr2-207308669; API